Troubleshooting Essentials for Cisco CCNA 200-125/100-105

By Ross Bagurdes
Learn crucial skills for troubleshooting Cisco networks, including troubleshooting methodology, when to resolve or escalate, the neighbor discovery protocols CDP and LLDP, the Cisco Design Model, and how to discover and solve common network problems.
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Course info
Rating
(36)
Level
Intermediate
Updated
Aug 15, 2016
Duration
2h 14m
Table of contents
Course Overview
Course Overview 1m
Troubleshooting Methodology
Introduction 1m Troubleshooting Is Not a Straight Line 4m Knowing Your Technology 6m Troubleshooting Method 2m Troubleshooting a Home Network Example 8m Resolve or Escalate? 1m Business IT Troubleshooting 4m Found Issue. Tested Solution. Now What? 4m Summary 1m
Flexibility with Troubleshooting
Introduction and Reviewing the Troubleshooting Method 1m Troubleshooting a Home Network Example 7m Troubleshooting Guidelines 6m Business IT Hierarchy 2m Documentation 4m Summary 1m
Neighbor Discovery
Introduction 1m Neighbor Discovery and Its Protocols 4m Cisco Discovery Protocol (CDP) 2m Link Layer Discovery Protocol (LLDP) 1m Demo: Examining CDP on Switch 1 and 2 9m Demo: Examining LLDP on a Network 5m Demo: Setting up the draw.io Space 3m Demo: Examining What Devices Are Directed Connected to Switch 1 5m Demo: Examining What Devices Are Directly Connected to Switch 2 5m Demo: Examining What Devices Are Directly Connected to Switch 3 2m Demo: Examining What Devices Are Directly Connected to the Routers 3m Summary 1m
Cisco Network Design Model
Introduction 1m The Access Layer 1m The Distribution Layer 2m The Core Layer 4m Summary 0m
Check Your Knowledge
Introduction 1m Demo: Examining Misconfigured IP Addresses on a Router 6m Demo: Examining Misconfigured IP Addresses on a Windows PC 10m Demo: Examining Misconfigured Cables 5m Demo: Examining Speed/duplex Issues 7m Summary 1m
Description
Course info
Rating
(36)
Level
Intermediate
Updated
Aug 15, 2016
Duration
2h 14m
Description

Troubleshooting can appear to be complex and mysterious. However, if you approach solving problems with an understanding of data networking and a method to work towards solution, troubleshooting can be more about persistence than anything magical. In this course, you will learn a methodology to approach troubleshooting, how to use the OSI and TCP/IP models to understand networked systems, and examine to approach solving IT problems with flexibility. You'll learn about CDP and LLDP and how to use these protocols to build a map of a network. Additionally, you'll understand the Cisco Design Model. Finally, you will see how to use ping and other utilities to investigate simple network issues, and see the error messages that occur from simple mistakes. By the end of this course, you'll have a solid understanding of the troubleshooting concepts covered on the Cisco CCNA 200-125 and 100-105 exams.

About the author
Ross Bagurdes
About the author

For nearly 20 years, Ross has taught and managed data networks.

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